Transforms.h

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/* -*- mode: c++ -*- */
#ifndef _BOARD_TRANSFORMS_H_
#define _BOARD_TRANSFORMS_H_

#include <limits>
#include <vector>
#include <cmath>
#include "TransformMatrix.h"

namespace LibBoard {

struct Rect;
struct Shape;
struct ShapeList;

struct Transform {
public:
  inline Transform();
  virtual ~Transform() { }
  virtual double mapX( double x ) const;
  virtual double mapY( double y ) const = 0;
  virtual Point map( const Point & ) const;
  virtual void apply( double & x, double & y ) const;
  virtual double scale( double x ) const;
  virtual Point scale( const Point & ) const;
  virtual double rounded( double x ) const;
  virtual void setBoundingBox( const Rect & rect,
                               const double pageWidth,
                               const double pageHeight,
                               const double margin ) = 0;
  static inline double round( const double & x );

protected:
  double _scale;
  double _deltaX;
  double _deltaY;
  double _height;
};

struct TransformEPS : public Transform {
public:
  double mapWidth( double w ) const;
  double mapY( double y ) const;
  void setBoundingBox( const Rect & rect,
                       const double pageWidth,
                       const double pageHeight,
                       const double margin );
  double scaleBackMM(double);
  Rect pageBoundingBox() const;

private:
  Rect _pageBoundingBox;
};

struct TransformFIG : public Transform {
public:
  inline TransformFIG();
  double rounded( double x ) const;
  double mapY( double y ) const;
  int mapWidth( double width ) const;
  void setBoundingBox( const Rect & rect,
                       const double pageWidth,
                       const double pageHeight,
                       const double margin );
  void setDepthRange( const ShapeList & shapes );
  int mapDepth( int depth ) const;
private:
  int _maxDepth;
  int _minDepth;
  double _postscriptScale;
};

struct TransformSVG : public Transform {
public:
  double rounded( double x ) const;
  double mapY( double y ) const;
  double mapWidth( double width ) const;
  void setBoundingBox( const Rect & rect,
                       const double pageWidth,
                       const double pageHeight,
                       const double margin );
  double scaleBackMM(double);
  TransformMatrix matrix() const;
  Point translation() const;
  double deltaX() const;
  double deltaY() const;
};

struct TransformTikZ : public TransformSVG {
};


#include "Transforms.ih"

} // namespace LibBoard

#endif /* _TRANSFORMS_H_ */